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Finding the Fourth Proportional to 115,493.40, 162,001.80 and 115,493.40

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Solution

The fourth proportional to 115,493.40, 162,001.80 and 115,493.40 is: 162,001.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,493.40 : 162,001.80 = 115,493.40 : x
  2. Step 2: Convert to fraction form
    115,493.40/162,001.80 = 115,493.40/x
  3. Step 3: Cross multiply
    115,493.40x = 162,001.80 × 115,493.40
  4. Step 4: Simplify right side
    115,493.40x = 18,710,138,688.12
  5. Step 5: Solve for x
    x = 18,710,138,688.12/115,493.40
  6. Step 6: Final answer
    x = 162,001.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.